- Voice actor: Kōichi Sakaguchi (both English and Japanese)
Arbok is a serpentine, reptilian Pokémon with purple scales over most of its body. It has lost the rattle it had on its tail as an Ekans. Like a cobra, it can spread out its ribs into a hood, though they always seem to be in this position. On its "hood", it has a design much like an angry face. Studies on the aforementioned design have confirmed that there are six variations. Its height is 11'06" and weight is 143.3 lbs.
has a nasty bite with deadly venom. Terrifically strong, it is capable of crushing opponents by coiling its body around them and constricting. It can even flatten steel oil drums. If it encounters an enemy, it raises its head, intimidating the opponent with the frightening pattern on its body and making eerie sounds by expelling air from its mouth. If any part of Arbok's body except for the head is cut off, it can regrow the rest of its body again in a matter of a few weeks. It shares this trait with Onix. It also has the ability to detect vibrations as shown in The Whistle Stop and A Poached Ego!. Arbok are also capable of spending long periods underwater and surviving in aquatic environments, as seen in The Misty Mermaid.
Seen in Adventures, Agatha's Arbok could change its pattern at any time to increase power to different stats and also give it invulnerability to [[|Stats|status ailment]]s. However, if covered, the pattern will not work.
Rather vicious, Arbok are territorial. They lash out at intruders with long fangs tipped with deadly venom. With a vengeful nature, it will not give up a chase once it targets its prey or an opponent, no matter how far.
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In the wild, Arbok are hunters of smaller preys, using the pattern on its hood to immobilize prey and using its venom to finish them off.
An Arbok made an appearance in the opening of Destiny Deoxys.
Multiple Arbok also appeared in The Power of One.
Arbokn, Cobra Pokémon. The evolved form of Ekans. It is rumored that the ferocious warning markings on its belly is for intimidation on foes when they are frozen in fear. Once it wraps its body around its foe, escaping its crunching and squizzing embrace is impossible.